Plessey System 250, also known as PP250, was the first operational computer to implement capability-based addressing, to check and balance the computation...

which split the assets of the Plessey group. The majority of Plessey's defence assets were amalgamated into BAE Systems in 1999 when British Aerospace...

points to). Some systems have also been based on capability-based addressing (hardware support for capabilities), such as Plessey System 250. Programs possessing...

Plessey was a British electronics company. It can also refer to: Plessey Code, a British barcode system Plessey System 250, a computer system that implements...

39 One Per Desk Jupiter Ace Memotech MTX Nascom Nascom 1 Nascom 2 Plessey System 250 Raspberry Pi Research Machines Research Machines 380Z LINK 480Z RM...

Instead of the programmer-visible registers used in Chicago and Plessey System 250 designs, the CAP would load internal registers silently when a program...

security: Plessey System 250, IBM System/38, Intel iAPX 432 architecture and KeyKOS. Capability approaches are widely used in research systems such as EROS...

these benefits lead to measurably more robust and secure systems. The Plessey System 250 was a system originally designed for use in telephony switches, which...

services to exports. He died on 3 December 2001, in Barbados. Plessey Plessey System 250 Plessey Code Anne Pimlott Baker, Clark, Sir John Allen (1926–2001)...

for lambda calculus by Christopher Wadsworth and employed by the Plessey System 250 as a critical part of a Lambda-Calculus Meta-Machine, reducing the...